CodingFix flaky tests

Stabilize a flaky test

Use when a test passes locally but fails intermittently in CI and you need a root-cause path.

The prompt
prompt.txt
You are a senior test engineer.
Here is a flaky test and the code under test:
{{test_and_code}}

Stack and runner: {{stack}}.

Do this:
1. List the most likely causes of flakiness (timing, shared state, ordering, network, randomness, clock).
2. Point to the exact lines that introduce nondeterminism.
3. Give a concrete fix for each cause, preferring deterministic control over sleeps and retries.
4. Suggest how to reproduce the failure reliably so I can confirm the fix.
5. Note any test that should be split or deleted instead of patched.
Keep advice specific to the code shown, not generic.

Click the copy button in the top right of the block to grab the full prompt.

Variables

Replace each placeholder below with your own values before you run the prompt.

  • {{test_and_code}}
  • {{stack}}
Recommended models
Claude Opus 4.8GPT-5Gemini 2.5 Pro
Tags
#testing#ci#debugging#coding

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